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Weather in Decorah, Iowa

Roses Bloom Along the Shelter Rows. Day 59 of spring. Read this microseason across nine climate regions →

Decorah, IA
Sunday, May 17 at 3:53 AM
68
°
Mostly Clear
Feels like
65°
Humidity
44%
Wind
4 mph
Sunrise
5:41 AM
Sunset
8:25 PM
Decorah, IA
Hour by hour · 24h
61°
46%
10p
60°
25%
11p
60°
13%
12a
59°
25%
1a
58°
2a
57°
3a
57°
4a
55°
5a
54°
6a
57°
7a
62°
8a
66°
9a
69°
10a
73°
11a
77°
12p
80°
1p
83°
2p
85°
3p
86°
4p
86°
5p
86°
6p
85°
7p
81°
8p
77°
27%
9p
L 54°H 86°
Decorah, IA
7-day forecast
  1. Today
    May 16
    Drizzle
    84%
    83°59°
  2. Sunday
    May 17
    Heavy Rain
    74%
    72°61°
  3. Monday
    May 18
    Showers
    88%
    78°62°
  4. Tuesday
    May 19
    Light Showers
    90%
    64°47°
  5. Wednesday
    May 20
    Overcast
    58°45°
  6. Thursday
    May 21
    Light Drizzle
    61°40°
  7. Friday
    May 22
    Light Drizzle
    11%
    55°49°
Decorah, IA
Anemometer · 24h winds · from true
NESW
From · True
NNE
032° · backing 58°
Direction
NNE
032°
Sustained
4
mph
Gust
5
mph
Peak 24h
24
avg 4
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 4 · pk 24 @ 2:00a
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Decorah, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
978.6
-0.7 mb in 3h · steady · 28.90 inHg
Now
978.6
mb
3h
-0.7
mb
12h
-1.6
mb
24h
+3.9
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 975981
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Decorah, IA
Air quality
48
AQI
Good
PM 2.5
6.1 μg/m³
PM 10
7.6 μg/m³
NO₂
8.1 μg/m³
Ozone
67.0 μg/m³
UV Index
0.0 Low
Decorah, IA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:10 AM
Sunrise
5:41 AM
Daylight
14h 44m
Sunset
8:25 PM
Civil dusk
1:59 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Decorah, IA
The moon
New Moon
0% illuminated
Moonrise
10:43 AM
Moonset
2:00 AM
In sign
♊︎ Gemini
Decorah, IA
Microseason · 28 of 72
May 16–20

Roses Bloom Along the Shelter Rows

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Decorah at a glance

  • Today vs. normal: 68°F — typical for the season
  • Last frost: May 6 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Cool-season window is open

As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

ZIP codes in Decorah

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.